@awkwardWolf4 hours ago
I split mine into 15 minutes of case math and 15 minutes of structuring drills before doing full cases. Much easier to see what was actually improving.
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@GlacierPeak584October 1, 2026Colombia
I struggle with both case math and case structuring. How should I improve?
- Case Math
I struggle with both math and structure in case interviews. How should I improve both?
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14 hours agoUnited States
Should I state the formula before I start calculating, even when the math is simple?
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When the math is easy, I tend to just calculate and give the number. Some coaches tell me to always state the formula first, even for basic percentage questions. Does saying the setup every time help, or can it make a simple calculation feel overexplained?
Sep 27, 2026United States
Top answer
Mayank G.Coach
Mayank G.CoachState the setup briefly when it helps the interviewer follow your logic, but you do not need to narrate every trivial arithmetic step.
When should I round during case math instead of carrying the exact number?
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I sometimes keep exact decimals all the way through a calculation because I am worried rounding will make the final answer wrong. Then the math gets slow and messy. Is there a good rule for when to round during a case versus when to keep the exact number?
Sep 26, 2026United States
Top answerMayank G.Coach
Mayank G.CoachRound when it simplifies the calculation without materially changing the business conclusion. Keep more precision when the result is close to an important threshold or comparison.